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40402664153 = 41985430833
BaseRepresentation
bin100101101000001011…
…111011101011011001
310212021201201222212122
4211220023323223121
51130221040223103
630321041151025
72630133656525
oct455013735331
9125251658778
1040402664153
1116153283635
1279b692b475
133a6b617687
141d53c66d85
1510b7024b38
hex9682fbad9

40402664153 has 4 divisors (see below), whose sum is σ = 41388095028. Its totient is φ = 39417233280.

The previous prime is 40402664149. The next prime is 40402664201. The reversal of 40402664153 is 35146620404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2734453264 + 37668210889 = 52292^2 + 194083^2 .

It is a cyclic number.

It is not a de Polignac number, because 40402664153 - 22 = 40402664149 is a prime.

It is a super-2 number, since 2×404026641532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40402664353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492715376 + ... + 492715457.

It is an arithmetic number, because the mean of its divisors is an integer number (10347023757).

Almost surely, 240402664153 is an apocalyptic number.

It is an amenable number.

40402664153 is a deficient number, since it is larger than the sum of its proper divisors (985430875).

40402664153 is an equidigital number, since it uses as much as digits as its factorization.

40402664153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985430874.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 40402664153 in words is "forty billion, four hundred two million, six hundred sixty-four thousand, one hundred fifty-three".

Divisors: 1 41 985430833 40402664153